Have been using Opera now for some time
While fancy it so far, it does have minor niggles that get me down. No built in translator for a start. That and having to constantly grant various permissions even when visiting another page of same site. Some of my banking/credit card sites need four or more separate permissions.
Yes, sometimes will use IE (11 IIRC) because certain sites won't work with Opera. That and or don't want to clear entire cache when visiting certain sites like Yahoo mail.
Once you give a website permission to store cookies with Opera (or any other browser far as one knows) it remains until you shut down browser entirely.
If you log onto eBay, keep that window open and then come onto AW; Ebay will set cookies there as well. Same if you open say gmail or something from Google I suppose.
Truth to tell IE has always been buggy, bloated and not very secure. Windows in general falls along those lines, but MS has been making strides.
MS has been telling people for years now to stop using IE, and IIRC soon will cease offering support as with Windows 10 "Edge" was their new browser. Only Luddites like oneself (hahahaha) are sticking to Windows 7 or below and still have IE.
No, didn't upgrade to Windows 10 and really don't see the need. Learned a long time ago to steer clear of any new Windows release. It took how many incarnations before Windows 7 became the stable and one of the best OS MS put out.
Can say from speaking with persons who have websites, according to their stats Chrome or Safari are top browsers. Opera comes in second or third depending upon a few factors. Usually IE alternates between third (if no hits from Opera), or fourth. Rarely is IE number one browser used by visitors to site. That is a thing; I mean back in the 1990's it was all about Windows and IE.